plight one's troth

v.

发誓；

Plight your troth -- and empty your father's bank account.
The Troth Of The Sword
Частникова С. А. КОГНИТИВНЫЕ ОСНОВАНИЯ РЕЧЕВОГО АКТА ОБЕЩАНИЯ
Dombey And Son - Chapter 31. The Wedding
PLIGHTING ONE'S TROTH
Left in a State by Agent's Dirty Tricks; Frustrated by the House Invaders
The Poor Plutocrats - Chapter 13. Tit For Tat
Neubearbeitung der Adjektivliste des Big Five Plus One Persönlichkeitsinventars
What's Wrong with the Idea of a Simple Wedding?
Chief Plays of Corneille